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Finding the Fourth Proportional to 19,089.52, 28,638.44 and 7,844.93

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Solution

The fourth proportional to 19,089.52, 28,638.44 and 7,844.93 is: 11,769.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,089.52 : 28,638.44 = 7,844.93 : x
  2. Step 2: Convert to fraction form
    19,089.52/28,638.44 = 7,844.93/x
  3. Step 3: Cross multiply
    19,089.52x = 28,638.44 × 7,844.93
  4. Step 4: Simplify right side
    19,089.52x = 224,666,557.11
  5. Step 5: Solve for x
    x = 224,666,557.11/19,089.52
  6. Step 6: Final answer
    x = 11,769.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.